Process for the production of glossy metallic coatings on metals



' ing filtered and of 55 manner into hydrogen-bindin Instead of hydrogen peroxide other oxi-' Fatent Apr. 22, Ni l.

will g Ere Brewing.

513,658 I have described a process for the production of glossy metallic coatings upon metals, for instance of zinc upon 1IOI1 by a galvanic process which consists in adding to the electrolytic bath, besides colloids or substances furnishing colloids, substances which prevent under the given conditions the generation of hydrogen at the cathode.

Further searches have shown that specially good results are obtained if, instead of the separate ap lication of colloids on the one hand and oi hydrogen binding substances on the other hand, such substances are added to the electrolyte bath which possess at the same time colloidal character and the capability of binding hydrogen. it has been found out that such colloids can be produced by various methods. If for instance gelatine is dissolved in warm no water in such a quantity that the solution when cooling solidifies to a solid jelly and if this mass is covered with hydrogen per oxide (perhydrol), the jelly is transformed gradually into a li uid state capable of bef orming a solution which does not give up oxygen even if allowed to rest for a long time. The effect of the perhydrol upon the jelly can be assisted by catalyzers, as for example, the sulphates of aluminum. I

By the addition of such a hydrogen-binding colloid, which contains ap arently the hydro en peroxide chemically ound or in very xed condition, to a galvanic bath technical eflects can be produced which could hitherto never be realized. At the electrolytic zincification of iron for instance, white, glossy, silver-like coatings of specially great density and high gloss are produced which on polishing ac uire a remarkabl beautiful and intense g oss.

ther organic or anorganic colloids as for instance gum, albumen, starch, dextrin, and others can be transformed in a similar products.

CLASSEN, 0F MCHEN, G

DUCTION 8F GLOSSY METALLIC COATINGS: 01% METs 7' hddml ans Application filed October 21, 1922. Serial No. 598,1e8.

The process is carried out for instance in the following manner:

A bath for galvanizing iron is prepared containing 10 kilograms of zinc sulphate, 2.5 kilograms of ammonium sulphate and 120 cubic centimeters of sulphuric acid (1.8 B.) per 100 liters. To this bath is added the quantity of the product obtained by the interaction of 5 grams of gelatine and 15 grams of hydrogen peroxide (30%ig) in the presence of 15 grams of aluminum sulphate. The zincification of the 'iron is then conducted in the. usual manner.

I claim: 1. A process for the production of glossy metal coatin s on metals galvanically consisting in a ding to the electrolytic bath hydrogen-binding colloids and in conducting t e galvanic process in the usual manner.

2. A process for the production of glossy metal coatings on metals galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of colloids and oxidizing means, and

in conducting the galvanic process in the usual manner.

3. A process for the production of glossy metal coatings on metals galvanically consisting in adding to the electrolytic bath hydro en-binding substances which have been pro uced b the action upon one another of colloids an oxidizing means in the presence of catalyzers and in conducting the galvanic process in the usual manner.

4. A process for the production of glossy metal coatin s on metals galvanically consisting in ad ing to the electrolytic hath hydro en-binding substances which have been pro uced b the action upon one another of colloids an hydrogen proxide, and in conducting the galvanic process in the usual manner.

5. A process tor the roduction of glossy metal coatings on meta s galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of colloids and hydrogen peroxide in the presence of catalyzers and in conducting the galvanic process in the usual manner.

6. A process for the production of glossy metal coatings on metals galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of colloids and substances furnishing hydrogen peroxide, and in conducting the galvanic process in the usual manner.

7. A process for the production of glossy metal coatings on metals galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced b the action upon one another of colloids an substances furnishin hydrogen peroxide in the presence of cata yzers, and in conducting the galvanic process in the usual manner.

8. A process for the production of glossy metal coatings on meta s galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of gelatine and hydrogen peroxide, andin conucting the galvanic process in the usual manner.

9. A process for the production of glossy metal coatin on metals galvanically consisting in ad ing to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of gelatine and hydrogen eroxide in the presence of catalyzers and in conducting the galvanic process in the usual manner.

10. A process for the roduction of glossy metal coatin son meta s galvanically con-;

sisting in ad ing to the electrolytic bath bydro en-bmding substances which have been pro need by the action upon one another of gelatme and hydrogen peroxidesfurnishing substances, and in conducting the galvanic process in the usual manner.

11. A process for the roduction of glossy metal coatin on meta s galvanically consistmg 111 ad ing to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of gelatine and hydrogen peroxide furnishing substances in the presence of catalyzers, and in conductmg the galvanic process in the usual manner.

12. A process for the roduction of glossy metal coatm s on meta s galvanically consisting in ad ing to the electrolytic bath hydrogen-bmding substances which have been produced by overlaying gelatine with hydrogen peroxide, and in conducting the galvanic process in the usual manner,

13. A process for the production oil glossy metal coatings on metals galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced by overlaying gelatine with hydrogen peroxide in the presence of catalyzers, and in conducting the galvanic process in the usual manner.

1%. A process for the roduction of glossy metal coatings on meta s galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of colloid furnishing substances and oxidizing means, and in conducting the galvanic process in the usual manner.

15. A process for the production of glossy metal coatings on metals galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of colloid furnishing substances and oxidizing means in the presence of catalyzers, and in conducting the galvanic process in the usual manner.

16. A process for the roduction of glossy metal coatin on meta s galvanically consisting in ad ing to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of colloid-furnishing substances and hydrogen peroxide, and in conducting the galvanic process in the usual manner.

17. A process for the roduction of glossy metalcoatings on meta s galvanically consisting in adding to the electrolytic bath hydrogen-binding substances which have been produced by the action upon one another of colloid-furnishing substances and hydrogen peroxide-furnishing substances, and in conducting the galvanic process in the usual manner.

18. A process for the roduction of glossy zinc coatings on iron ga vanically consisting in addin to the electrolytic zinc bath hydrogen-bmding colloids and in conducting the galvanic process in the usual manner.

19. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have earner 21. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have been produced by the action upon one another of colloids and hydrogen peroxide, and in conducting the galvanic process in the'usual manner.

22. A process for the production of glossy zinc coatingson iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have been produced by the action upon one another of colloids and hydrogen peroxide in the presence of catalyzers, and in conducting the galvanic process in the usual man ner.

23. A process for the production of glossy zinc coatings on iron galvanically consisttin in adding to the electrolytic zinc bath hy rogen-binding substances which have been produced by the actionupon one another of colloids and substances furnishing hydrogen peroxide, and in conducting the galvanicprocess in the usual manner.

24. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have been produced by the action upon one another of colloids and substances furnishing hydrogen peroxide in the presence of catalyzers, and in conducting the galvanic process in the usual manner.

25. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have been produced by the action upon one another of gelatine and hydrogen peroxide, and in conducting the galvanic process in the usual manner.

26. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have been produced by the action upon one another of gelatine and hydrogen peroxide in the presence of catalyzers, and in conducting the galvanic process in the usual manner.

27. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have been produced by'the action upon one another of gelatine and hydrogen peroxidefurnishing swbstanoes, and in conducting the galvanic process in the usual manner.

28. A process for the production of glossy zinc coatings on iron alvanically consisting in adding to the e ectrolytic zinc bath hydrogen-binding substances which have been produced by the action upon oneanother: otgelatine and hydrogen peroxide furnishing substances in the presence of catalyzers, and in conducting" the galvanic process in the usual manner.

29. A process for the production of glossy zinc coatings on iron which consists in overlaying gelatine with hydrogen peroxide, adding the product thus obtained to the electrolytic zinc bath, and conducting the galvanic process in the-usual manner.

30. A process for the production of gloss zinc coatings on iron galvanically whic consists in overlaying gelatine with hydrogen peroxide in the presence of catalyzers, adding the product thus obtained to the electrolytic zinc bath, and conducting the galvanic process in the usual manner.

31. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have been produced by overlaying gelatine with. hydrogen peroxide in the presence of catalyzers, and in conducting the galvanic process in the usual manner.

32. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogembinding substances which have been produced by the action upon one another of colloid-furnishing substances and oxidizing means, and in conducting the galvanic process in the usual manner.

33. A rocess for the production of glossy zinc coatings on iron galvanically consisting in adding to the electrolytic zinc bath hydrogen-binding substances which have been produced by the action upon one another of colloid-furnishing substances and oxiding means in the presence of catalyzers, and in conducting the galvanic proccessin the usual manner.

3A. A process for the production of glossy s'inc coatings on iron galvanically consisting in addmg to the electrolytic zinc bath hydrogen-binding substances which have been produced by the action upon one another of colloid-furnishing substances and, hydrogen peroxide, and in conducting the galvanic process in the usual manner.

35. A process for the production of glossy zinc coatings on iron galvanically consisting in adding to the'electrolytic zinc bath hydrogen-binding substances which have been produced by the action upon one another of colloid-furnishin substances and hydrogen PBI'OXidB fHI'IIiS ing substances,

and in conducting the galvanic process in the usual manner;

In testimony whereof I afix my signature in presence of two witnesses.

L'orsn Aooos'rn Wares, Mam Bream.- 

